The Georgia Constitution has this to say about who governs the University System:

(b) The board of regents shall have the exclusive authority to create new public colleges, junior colleges, and universities in the State of Georgia, subject to approval by majority vote in the House of Representatives and the Senate. Such vote shall not be required to change the status of a college, institution or university existing on the effective date of this Constitution. The government, control, and management of the University System of Georgia and all of the institutions in said system shall be vested in the Board of Regents of the University System of Georgia. (Article VIII , Section IV(b))